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grin007 [14]
3 years ago
9

Solve y=5-3x+4y=8

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
4 0

Answer:

y = 8 \\ 5 - 3x + 4y = 8 \\ 5 - 3x + 4 \times 8 = 8 \\ x =  \frac{29}{3}  \\ (x.y) = ( \frac{29}{3} .8) \\ 8 = 5 - 3 \times  \frac{29}{3}  + 4 \times 8 = 8 \\ 8 = 8 = 8

brainyliest please

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Find x, y, and z<br><br> x = 39<br> x = 29<br> y = 61<br> y = 29<br> z = 61<br> z = 29
nikdorinn [45]

answer:

x = 29

y = 29

z = 61

step-by-step explanation:

all angles in a triangle must equal 180 degrees.

we were already given the angle degree of 61 degrees so we must include that in our formula to determine the degree of y.

the line in the middle already gives us two more angles because they both are 90 degrees for being a perfect quarter turn.

so to figure out y,

we must add 61+90 and then subtract the sum of that from 180.

so, 61+90 = 150 and 180-151 = 29

therefore,

we can conclude that y = 29

now, to determine the degrees of x and z we do the same thing.

we already know one angle equals 90 degrees.

180-90 = 90

that concludes that x and z must have a sum of 90.

if we use our choices,

39+61 = 100 (no)

39+29 = 68 (no)

29+61 = 90 (CORRECT)

29+29 = 28 (no)

<em>therefore, x = 29 and z = 61</em>

<em></em>

<em>so, in total :</em>

<em>x = 29</em>

<em>y = 29</em>

<em>z = 61</em>

<em></em>

<em>hope this helps :)   </em>

<em>-audrey <3 </em>

5 0
3 years ago
You return several shirts to a store. The receipt shows that the amount placed back on your credit card is − $30.60. Each shirt
iris [78.8K]
I did this on a calculator may or may not be correct but I got 18
6 0
3 years ago
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To borrow​ money, you pawn your guitar. Based on the value of the​ guitar, the pawnbroker loans you ​$
Nonamiya [84]
\bf \qquad \textit{Simple Interest Earned Amount}\\\\&#10;A=P(1+rt)\qquad &#10;\begin{cases}&#10;A=\textit{accumulated amount}\to &\$1472\\&#10;P=\textit{original amount}\to& \$1080\\&#10;r=rate\\&#10;t=years\to &\frac{1}{12}&#10;\end{cases}&#10;\\\\\\&#10;1472=1080\left(1+r\cdot \frac{1}{12}\right)

notice, it was pawned for only 1 month, so the "yearly" rate is for 1 month, which is 1/12 of the year, since a year has 12 moths

you'll get a rate in decimal terms, to get the % amount, just multiply it times 100
6 0
3 years ago
What is x(3x+2)?Please give a reasonable explaination and answer.
Andru [333]

Answer:

3x squared + 2x as you multiply everything in the bracket by what's on the outside of the bracket so it would be 3x multiply by x which equals 3x squared and 2 multiply x which equals 2x

6 0
3 years ago
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Jaida was grocery shopping for easter dinner, she got 7 lb Spanish serano ham for $50, 5 lbs of russet potatoes for $5 and a bag
Marrrta [24]

Answer: $61.48

Step-by-step explanation:

First, let’s find her cost before tax by adding everything she bought together.

50+5+3=58

Then, find the cost of sales tax.

Convert 6% to a decimal

6/100=0.06

Multiply the total cost by the decimal

58*0.06=3.48

Add the tax and total cost together

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So the total cost with tax is $61.48

Hope this helped!

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3 years ago
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